Fix today
A file with your site's passwords is downloadable
This is the exact wording EverThread uses when it finds this on a customer's site, written for someone who runs a business, not a server. The example site here is yourbakery.com.
What we saw
https://yourbakery.com/.env is publicly readable. These files usually hold database passwords and API keys.
Why it matters
Anyone who finds it has the keys to your database and connected services. Treat every secret in it as already leaked.
How to fix it
Tell your developer immediately: block the file, then change every password and key inside it.
For your developer
https://yourbakery.com/.env is served publicly. Deny access at the web server, move secrets out of the web root, and rotate all credentials it contains.